Home / 11,557.80-17,298.30-8,101.80

Finding the Fourth Proportional to 11,557.80, 17,298.30 and 8,101.80

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Solution

The fourth proportional to 11,557.80, 17,298.30 and 8,101.80 is: 12,125.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,557.80 : 17,298.30 = 8,101.80 : x
  2. Step 2: Convert to fraction form
    11,557.80/17,298.30 = 8,101.80/x
  3. Step 3: Cross multiply
    11,557.80x = 17,298.30 × 8,101.80
  4. Step 4: Simplify right side
    11,557.80x = 140,147,366.94
  5. Step 5: Solve for x
    x = 140,147,366.94/11,557.80
  6. Step 6: Final answer
    x = 12,125.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.